Features:
- Diameter of 4.0 mm—ideal for smaller, precise holes.
- Self‑centring “PointTeQ” tip ensures accurate starts and reduces bit wander.
- High‑speed steel construction with black‑oxide finish enhances durability and chip removal.
- Cylindrical shank compatible with standard three‑jaw drill chucks.
- Conforms to DIN 338 Type N, suitable for metal drilling in steel, aluminum, cast iron, and plastics.
Detailed Description:
- The Bosch HSS PointTeQ 4 mm drill bit is engineered for precision drilling in metal, cast iron, non‑ferrous materials, and plastics. Thanks to its self‑centring 135° PointTeQ tip, it provides accurate hole starts with minimal drift. Its high‑speed steel build and black‑oxide finish ensure a long lifespan and efficient chip evacuation. This makes it an excellent choice for professional workshops and detailed metalworking tasks.
Technical Data:
| Diameter: | 4.0 mm |
| Working length: | 43 mm |
| Total length: | 75 mm |
| Tip Design: | 135° self‑centring “PointTeQ” tip |














